Just a little bit of innocent fun here. We found this site where you can design a simple firework display (online) and e-mail it to a friend: The Great British Rocket Rush. I hope it still works – we first found it a couple of years ago – and had a go at making a “display” this afternoon. Since then the website seems to have become somewhat slow to respond.
The “firework display” is not the same as the real thing, of course, but safe and not so weather-dependent.